Measurement of the inclusive and dijet cross-sections of b-jets in pp collisions at root s=7 TeV with the ATLAS detector

Aad, G; Abbott, B; Abdallah, J; Abdelalim, AA; Abdesselam, A; Abdinov, O; Abi, B; Abolins, M; Abramowicz, H; Abreu, H; Acerbi, E; Acharya, BS; Adams, DL; Addy, TN; Adelman, J; Aderholz, M; Adomeit, S; Adragna, P; Adye, T; Aefsky, S; Aguilar-Saavedra, JA; A,

doi:10.1140/epjc/s10052-011-1846-4

Title: Measurement of the inclusive and dijet cross-sections of b-jets in pp collisions at root s=7 TeV with the ATLAS detector

Journal Article · Thu Dec 01 00:00:00 EST 2011 · European Physical Journal. C, Particles and Fields

DOI:https://doi.org/10.1140/epjc/s10052-011-1846-4· OSTI ID:1037711

Aad, G; Abbott, B; Abdallah, J; Abdelalim, AA; Abdesselam, A; Abdinov, O; Abi, B; Abolins, M; Abramowicz, H; Abreu, H; Acerbi, E; Acharya, BS; Adams, DL; Addy, TN; Adelman, J; Aderholz, M; Adomeit, S; Adragna, P; Adye, T; Aefsky, S more »

The inclusive and dijet production cross-sections have been measured for jets containing b-hadrons (b-jets) in proton-proton collisions at a centre-of-mass energy of {radical}s = 7 TeV, using the ATLAS detector at the LHC. The measurements use data corresponding to an integrated luminosity of 34 pb{sup -1}. The b-jets are identified using either a lifetime-based method, where secondary decay vertices of b-hadrons in jets are reconstructed using information from the tracking detectors, or a muon-based method where the presence of a muon is used to identify semileptonic decays of b-hadrons inside jets. The inclusive b-jet cross-section is measured as a function of transverse momentum in the range 20 < p{sub T} < 400 GeV and rapidity in the range |y| < 2.1. The b{bar b}-dijet cross-section is measured as a function of the dijet invariant mass in the range 110 < m{sub jj} < 760 GeV, the azimuthal angle difference between the two jets and the angular variable {chi} in two dijet mass regions. The results are compared with next-to-leading-order QCD predictions. Good agreement is observed between the measured cross-sections and the predictions obtained using POWHEG + Pythia. MC{at}NLO + Herwig shows good agreement with the measured b{bar b}-dijet cross-section. However, it does not reproduce the measured inclusive cross-section well, particularly for central b-jets with large transverse momenta.

Cite

Export

Save

Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

DOE Contract Number:: AC02-98CH10886

OSTI ID:: 1037711

Report Number(s):: BNL-97102-2012-JA; KA1101021; TRN: US1201679

Journal Information:: European Physical Journal. C, Particles and Fields, Vol. 71, Issue 12; ISSN 1434-6044

Publisher:: Springer

Country of Publication:: United States

Language:: English

References (20)

Cross Section for $b$ -Jet Production in $\bar{p} p$ Collisions at $\sqrt s = 1.8 TeV$ Abbott, B.; Abolins, M.; Abramov, V. Physical Review Letters, Vol. 85, Issue 24 https://doi.org/10.1103/PhysRevLett.85.5068	journal	December 2000
A first unbiased global NLO determination of parton distributions and their uncertainties Ball, Richard D.; Del Debbio, Luigi; Forte, Stefano Nuclear Physics B, Vol. 838, Issue 1-2 https://doi.org/10.1016/j.nuclphysb.2010.05.008	journal	October 2010
The production cross section and angular correlations in collisions at Abbott, B.; Abolins, M.; Abramov, V. Physics Letters B, Vol. 487, Issue 3-4 https://doi.org/10.1016/S0370-2693(00)00844-3	journal	August 2000
Measurement of bottom quark production in 1.8 TeV pp¯ collisions using muons from b -quark decays Abe, F.; Albrow, M.; Amidei, D. Physical Review Letters, Vol. 71, Issue 15 https://doi.org/10.1103/PhysRevLett.71.2396	journal	October 1993
Measurement of the bottom quark production cross section in proton-antiproton collisions at √s = 0.63 TeV Albajar, C.; Albrow, M. G.; Allkofer, O. C. Physics Letters B, Vol. 213, Issue 3 https://doi.org/10.1016/0370-2693(88)91785-6	journal	October 1988
Parton distributions for the LHC Martin, A. D.; Stirling, W. J.; Thorne, R. S. The European Physical Journal C, Vol. 63, Issue 2 https://doi.org/10.1140/epjc/s10052-009-1072-5	journal	July 2009
Parton fragmentation and string dynamics Andersson, B.; Gustafson, G.; Ingelman, G. Physics Reports, Vol. 97, Issue 2-3 https://doi.org/10.1016/0370-1573(83)90080-7	journal	July 1983
Measurement of <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>σ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>p</mml:mi><mml:mi>p</mml:mi><mml:mo>→</mml:mo><mml:mi>b</mml:mi><mml:mover accent="true"><mml:mi>b</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:mi>X</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math> at <mml:math altimg="si2.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mtext> TeV</mml:mtext></mml:math> in the forward region Aaij, R.; Abellan Beteta, C.; Adeva, B. Physics Letters B, Vol. 694, Issue 3 https://doi.org/10.1016/j.physletb.2010.10.010	journal	November 2010
Determination of heavy quark non-perturbative parametersfrom spectral moments in semileptonic B decays Collaboration, Delphi The European Physical Journal C, Vol. 45, Issue 1, p. 35-59 https://doi.org/10.1140/epjc/s2005-02406-7	journal	January 2006
Parton distributions for LO generators Sherstnev, A.; Thorne, R. S. The European Physical Journal C, Vol. 55, Issue 4 https://doi.org/10.1140/epjc/s10052-008-0610-x	journal	May 2008
Measurement of the bottom quark production cross section using semileptonic decay electrons in pp¯ collisions at √ s =1.8 TeV Abe, F. Physical Review Letters, Vol. 71, Issue 4 https://doi.org/10.1103/PhysRevLett.71.500	journal	July 1993
Measurement of inclusive jet and dijet cross sections in proton-proton collisions at 7 TeV centre-of-mass energy with the ATLAS detector Aad, G.; Abbott, B.; Abdallah, J. The European Physical Journal C, Vol. 71, Issue 2 https://doi.org/10.1140/epjc/s10052-010-1512-2	journal	February 2011
The ATLAS Simulation Infrastructure Aad, G.; Abbott, B.; Abdallah, J. The European Physical Journal C, Vol. 70, Issue 3 https://doi.org/10.1140/epjc/s10052-010-1429-9	journal	September 2010
Implications of CTEQ global analysis for collider observables Nadolsky, Pavel M.; Lai, Hung-Liang; Cao, Qing-Hong Physical Review D, Vol. 78, Issue 1 https://doi.org/10.1103/PhysRevD.78.013004	journal	July 2008
Geant4—a simulation toolkit Agostinelli, S.; Allison, J.; Amako, K. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3 https://doi.org/10.1016/S0168-9002(03)01368-8	journal	July 2003
Heavy-Quark Frixione, Stefano; Mangano, Michelangelo L.; Nason, Paolo Heavy Flavours II https://doi.org/10.1142/9789812812667_0009	book	June 1998
The ATLAS Experiment at the CERN Large Hadron Collider Collaboration, The ATLAS; Aad, G.; Abat, E. Journal of Instrumentation, Vol. 3, Issue 08 https://doi.org/10.1088/1748-0221/3/08/S08003	journal	August 2008
Fitting using finite Monte Carlo samples Barlow, Roger; Beeston, Christine Computer Physics Communications, Vol. 77, Issue 2 https://doi.org/10.1016/0010-4655(93)90005-W	journal	October 1993
Luminosity determination in pp collisions at $\sqrt{s} = 7$ TeV using the ATLAS detector at the LHC Aad, G.; Abbott, B.; Abdallah, J. The European Physical Journal C, Vol. 71, Issue 4 https://doi.org/10.1140/epjc/s10052-011-1630-5	journal	April 2011
Beauty production at the CERN proton-antiproton collider Albajar, C.; Albrow, M. G.; Allkofer, O. C. Physics Letters B, Vol. 186, Issue 2 https://doi.org/10.1016/0370-2693(87)90287-5	journal	March 1987

Cited By (6)

Inclusive b-jet production in pp collisions at \sqrt{s} =7 TeV Collaboration, Cms; Chatrchyan, S.; Khachatryan, V. Springer https://doi.org/10.5167/uzh-75992	text	January 2012
Measurement of the $$b\overline{b}$$ b b ¯ dijet cross section in pp collisions at $$\sqrt{s} = 7$$ s = 7 TeV with the ATLAS detector Aaboud, M.; Aad, G.; Abbott, B. The European Physical Journal C, Vol. 76, Issue 12 https://doi.org/10.1140/epjc/s10052-016-4521-y	journal	December 2016
Gluon PDF constraints from the ratio of forward heavy-quark production at the LHC at $$\sqrt{S}=7$$ S = 7 and 13 TeV Cacciari, Matteo; Mangano, Michelangelo L.; Nason, Paolo The European Physical Journal C, Vol. 75, Issue 12 https://doi.org/10.1140/epjc/s10052-015-3814-x	journal	December 2015
Inclusive b-jet production in pp collisions at √s=7TeV Chatrchyan, Serguei; Khachatryan, Vardan; Sirunyan, Albert M. RWTH Aachen University https://doi.org/10.18154/rwth-2017-02216	text	January 2012
Measurement of jet shapes in top-quark pair events at $\sqrt{s} = 7 \ \mbox{TeV}$ using the ATLAS detector Aad, G.; Abajyan, T.; Abbott, B. The European Physical Journal C, Vol. 73, Issue 12 https://doi.org/10.1140/epjc/s10052-013-2676-3	journal	December 2013
Analyzing the Issue of Respect and Trust: Determining the Mediating Role of Religion Ali, Siti Haryati Shaikh; Mansur, Norudin; Abdullah, Zalinawati Procedia - Social and Behavioral Sciences, Vol. 58 https://doi.org/10.1016/j.sbspro.2012.09.1039	journal	October 2012

Linked Research (6)

Similar Records

Measurement of the inclusive and dijet cross-sections of b-jets in pp collisions at $\sqrt{s}=7\mbox{~TeV}$ with the ATLAS detector

Journal Article · Thu Dec 01 00:00:00 EST 2011 · European Physical Journal. C, Particles and Fields · OSTI ID:1037711

Aad, G.; Abbott, B.; Abdallah, J.; +3011 more

Measurement of inclusive jet and dijet production in pp collisions at root s=7 TeV using the ATLAS detector

Journal Article · Tue Jul 24 00:00:00 EDT 2012 · Physical Review. D, Particles, Fields, Gravitation and Cosmology · OSTI ID:1037711

Aad, G; Abbott, B; Abdallah, J; +16 more

Measurement of associated W + charm production in pp collisions at $\sqrt{s}$ = 7 TeV

Journal Article · Tue Feb 04 00:00:00 EST 2014 · Journal of High Energy Physics (Online) · OSTI ID:1037711

Chatrchyan, Serguei

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CROSS SECTIONS
DECAY
LUMINOSITY
MUONS
PARTICLE RAPIDITY
PRODUCTION
QUANTUM CHROMODYNAMICS
SEMILEPTONIC DECAY
TRANSVERSE MOMENTUM

Measurement of the inclusive and dijet cross-sections of b^– jets in pp collisions at √s = 7 TeV with the ATLAS detector Aad, Georges; Abbott, Brad; Abdallah, Jalal https://doi.org/10.17182/hepdata.58001 The current record is supplemented by this dataset	dataset	June 2014
"Table 2" of "Measurement of the inclusive and dijet cross-sections of b-jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector" Collaboration, Atlas https://doi.org/10.17182/hepdata.58001.v1/t2 The current record is supplemented by this dataset	dataset	January 2014
"Table 5" of "Measurement of the inclusive and dijet cross-sections of b-jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector" Collaboration, Atlas https://doi.org/10.17182/hepdata.58001.v1/t5 The current record is supplemented by this dataset	dataset	January 2014
"Table 4" of "Measurement of the inclusive and dijet cross-sections of b-jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector" Collaboration, Atlas https://doi.org/10.17182/hepdata.58001.v1/t4 The current record is supplemented by this dataset	dataset	January 2014
Measurement of the inclusive and dijet cross-sections of $b^-$ jets in $pp$ collisions at $\sqrt{s}=7$ TeV with the ATLAS detector [Supplemental Data] Aad, Georges; Abbott, Brad; Abdallah, Jalal https://doi.org/10.17182/hepdata.58001.v1 The current record is supplemented by this dataset	dataset	June 2014
"Table 7" of "Measurement of the inclusive and dijet cross-sections of b-jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector" Collaboration, Atlas https://doi.org/10.17182/hepdata.58001.v1/t7 The current record is supplemented by this dataset	dataset	January 2014